Aroma diffuser



FIG. 1 is a perspective view of an aroma diffuser showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right side view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines showing portions of the aroma diffuser are included forthe purpose of illustrating the portions of the article and form no partof the claimed design.

CLAIM The ornamental design for an aroma diffuser, as shown anddescribed.